One of Industry Standard Drafter for Sheet-Fed Paper Bag Making Machine in China

450RHH

Fully Automatic High Speed Paper Bag Machine

(Roll to Sheet, Twisted Rope Handle & FlatHandle Pasting, Top Folding )

Professional Manufacturer of Sheet-Fed Paper Bag Making Machines

From R&D and manufacturing to installation and after-sales service, KORO delivers reliable paper bag production solutions worldwide.

Fully Automatic Paper Bag Machine

A fully automated paper bag production line automatically feeds materials—such as paper and glue—into the line, and through processes including creasing, gluing, forming, and bottom pasting, completes the production of high-quality paper bags.

30+Export Countries

75+National Patents

10000+Success Stories

Fully Automatic High Speed Sheet Fed Paper Bag Making Machine

Paper Bag Machine with Paper Handle Ropes >>

Switch twised handle and flat handle in 15 minutes
Width: 22 cm (Competitors: 18 cm)
Speed: 60-100 units/minute

Luxury Paper Bag Making Machine>>

Patented Linear Model 23M
Speed:40-85pcs/min
Maximum Paper Weight: 300g

Proprietary Patented Technology:

Setting the Industry Standard

Faster, Better, Smarter

Innovative Patented Technology

KORO holds 75+ national patents (including 17 inventions) and co-drafted the industry standard JB/T 14020—2021. Core components are in-house designed with full servo control. Compared to traditional equipment: 15-min changeover(Twisted Handle and flat paper handle only control made by one handle making unit, save more space of the factory) , synchronized zero waste , patented linear structure. As a high-end intelligent paper bag making solution expert, we create greater value.

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REASONS FOR CHOOSING KORO

switch between twisted handle and flat handle

Cascading design; switching between twisted handle and flat handle takes just 15 minutes. It occupies minimal floor space and generates no waste.

Patented Linear, Crease-Free Design

23-meter linear production line: produces laminated paper bags free of creases, with reinforced bottoms designed to prevent bursting.

Base Plate Anti-Drop System

Angled dual-station design + small cylinders: 30% increase in efficiency, 90% reduction in drop rate.

About KORO

KORO (Wenzhou Jukai Machinery Co., Ltd.), established in 2008, is a manufacturer of post-press equipment integrating R&D, production, sales, and service. The company participated in drafting the industry standard JB/T 14020—2021, *Sheet-fed Paper Bag Making Machines*, and has been recognized as a "National High-tech Enterprise" and a "Technology-based SME in Zhejiang Province." Guided by its mission to serve as an "Expert in High-end Intelligent Paper Bag Making Solutions," the company is dedicated to providing global customers with efficient, stable, and intelligent paper bag production equipment. Its products are exported to over 30 countries, serving more than 200 paper bag manufacturing enterprises.

Understood, KORO

Our Capabilities

R&D Investment

We invest 5% to 15% of our annual revenue in R&D and hold provincial-level certification for "First-of-its-Kind" products.

Craft Passed Down

16 years of master-apprentice mentorship — setup instincts and precision standards passed down hands‑on. Machines upgrade, but the millimeter‑level control etched into every craftsman’s hands is what makes KORO reliability last.

Precision Machining

Equipped with our own CNC machining centers, we independently manufacture core components, ensuring controllable precision.

Strict Quality Control

1,000+ experiments combined with 72 hours of continuous running tests ensure zero defects upon factory release.

News & Events

Stay updated with KORO's latest news and events

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More Than Machines — The KORO Philosophy of Customer Success

A KORO service engineer working alongside a customer operator at a machine. Both are engaged in discussion, pointing at ...

06-30 2026

Why Premium Brands Choose KORO for Garment, Cosmetic, and Gift Bag Production

From luxury garment bags to high-end cosmetic packaging — discover why premium brands trust KORO‘s patented linear techn...

06-30 2026

“First Set” to Global Trust — How KORO Solves Real Pain Points in Paper Bag Production

The recognition came quickly. In 2021, this machine was named a Provincial “First Set” Product — a designation awarded o...

06-30 2026

Solutions Tailored to Your Needs

We listen to market demands, transforming challenges into customized solutions—from complete production lines to core components—to craft equipment that seamlessly integrates with your production processes.

Integrated Inline Production Full-Range Size Support Patented Linear Structure Start Your Personalization